More powerful panel data unit root tests with an application to mean reversion in real exchange rates
提出对常用面板单位根检验的改进方法，使其更强大，并适用于存在截面相关的情况，对研究汇率等经济变量的均值回归有帮助。
Abstract Unit root tests, seeking mean or trend reversion, are frequently applied to panel data. We show that more powerful variants of commonly applied tests are readily available. Moreover, power gains persist when the modifications are applied to bootstrap procedures that may be employed when cross‐correlation of a rather general sort among individual panel members is suspected. Copyright © 2004 John Wiley & Sons, Ltd.